the tool above catches the rest
It can be found here: http://www.failedinsider.com/corruptjpegcheckermacosx/ or in the mac app store.
Saved me a lot of time.
I realise you did this 2 years ago now, but this is really awesome. I'm a bit surprised there's not more attention drawn to:
- adding transparency to the JPEG specification in a standards-based way and
- your stop-gap solution.
Just curious though, why are you using uncompressed PNGs for the alpha channel? It would seem to me that embedding a grey-scale JPEG layer into the original JPEG would yield a much more compact solution and the benefits and pitfalls of lossfully compressing the alpha-channel should be very understood by the wielder of this solution.
Given the apparent intelligence reflected in your posts, it is obvious to me that you had already considered this, but yet you went with embedding a PNG into a JPEG. Do you have a post somewhere that details your logic here? If you're not interested in blogging about it, please drop a note at 'm' followed by 'j' followed by 'k' at sisuconsulting.com. Many, many thanks in advance!
Anyone has the email address of the guy (Hajo Noerenberg) who actually hacked it?
I've seen some indirect talk about mdraid + LVM + EXT4 not being a bootable combo yet, but then again I've seen people boast about their mdraid + dmcrypt + LVM + EXT4 / BTRFS setups.
I guess I will just fall back to a good old fashioned EXT2 boot partition.
Here's my rubber chicken waving approach for the internet:
GRUB_PRELOAD_MODULES="search_fs_uuid raid raid5rec raid6rec mdraid lvm ext2 chain pci"
update-grub
grub-install --modules="search_fs_uuid raid raid5rec raid6rec mdraid lvm ext2 chain pci" /dev/sda
update-grub
grub-install --modules="search_fs_uuid raid raid5rec raid6rec mdraid lvm ext2 chain pci" /dev/sda
Debian 6.0.4 installer .iso
6 virtual disk devices
-> one physical raid partition per device
-> one RAID6 md0
One physical volume group
logical volume /
logical volume /home
The system does not manage to boot even after going in into the rescue mode and making sure grub is both configured and installed with the lvm module preloading (/etc/default/grub -> update-grub -> grub-install).
It all trips up in grub-pc (GRUB2) somehow and I do not know how to debug it.
GRUB loading.
Welcome to GRUB!
error: file not found.
Entering rescue mode...
grub rescue>
Any pointers? Did I miss and mess up any of the rescue mode superhero stuff?